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Amphastar Pharmaceuticals AMPH 28.6 -0.46 -1.58%
Window
Scale
Plotted 3/8
Metric library
Volatility
Interactive timeline
AMPH / Comparative study
3 signals / 492 sessions
Window statistics
Signal snapshot
Current value vs. selected history
IV Rank
z -0.57
13.08
Mean
25.67
Window
-64.6%
ATM IV
z -0.41
0.6
Mean
0.77
Window
+7.4%
IV Percentile
z -0.49
40.08
Mean
55.01
Window
-35.8%
Relationship matrix
Correlation
Pearson r
| Signal | IV Rank | ATM IV | IV Percent... |
|---|---|---|---|
| IV Rank | 1.00 | 0.63 | 0.79 |
| ATM IV | 0.63 | 1.00 | 0.74 |
| IV Percent... | 0.79 | 0.74 | 1.00 |
Source observations
Data inspector
1-50 of 492
- 1 / 10
| Date | Close | IV Rank | ATM IV | IV Percentile |
|---|---|---|---|---|
| 2026-11-11 | 28.6 | 13.08 | 0.6 | 40.08 |
| 2026-11-10 | 29.06 | 12.96 | 0.6 | 39.27 |
| 2026-11-09 | 29.38 | 12.31 | 0.58 | 34.96 |
| 2026-11-06 | 28.49 | 10.44 | 0.54 | 25.1 |
| 2026-11-05 | 27.66 | 14.33 | 0.64 | 45.34 |
| 2026-11-04 | 28.02 | 10.32 | 0.53 | 25 |
| 2026-11-03 | 27.12 | 15.49 | 0.66 | 50.78 |
| 2026-11-02 | 27.03 | 23.69 | 0.87 | 75.29 |
| 2026-10-30 | 27.72 | 17.5 | 0.72 | 63.14 |
| 2026-10-29 | 26.93 | 16.4 | 0.69 | 57.09 |
| 2026-10-28 | 26.33 | 16.58 | 0.69 | 58.1 |
| 2026-10-27 | 25.57 | 27.25 | 0.96 | 81.42 |
| 2026-10-26 | 25.47 | 27.77 | 0.97 | 81.75 |
| 2026-10-23 | 25.14 | 27.8 | 0.97 | 82.21 |
| 2026-10-22 | 26.04 | 20.46 | 0.79 | 70.36 |
| 2026-10-21 | 26.2 | 11.96 | 0.58 | 32.81 |
| 2026-10-20 | 25.94 | 15.47 | 0.66 | 52.57 |
| 2026-10-19 | 26.14 | 15.05 | 0.65 | 50.79 |
| 2026-10-15 | 26.42 | 13.21 | 0.61 | 41.34 |
| 2026-10-14 | 26.08 | 12.66 | 0.59 | 37.4 |
| 2026-10-13 | 26.05 | 17.14 | 0.71 | 61.81 |
| 2026-10-12 | 26.76 | 9.06 | 0.5 | 18.58 |
| 2026-10-09 | 26.62 | 8.7 | 0.49 | 15.75 |
| 2026-10-08 | 25.81 | 15.51 | 0.67 | 51.18 |
| 2026-10-07 | 25.54 | 15.63 | 0.67 | 51.57 |
| 2026-10-06 | 25.91 | 12.44 | 0.59 | 35.83 |
| 2026-10-05 | 25.37 | 14.8 | 0.65 | 48.62 |
| 2026-10-02 | 25.43 | 14.12 | 0.63 | 44.09 |
| 2026-10-01 | 25.35 | 3.91 | 0.37 | 1.97 |
| 2026-09-30 | 25.81 | 7.38 | 0.46 | 10.24 |
| 2026-09-29 | 26.68 | 9.05 | 0.5 | 16.93 |
| 2026-09-28 | 27.39 | 12.3 | 0.58 | 33.99 |
| 2026-09-25 | 26.13 | 6 | 0.43 | 5.51 |
| 2026-09-24 | 26.27 | 4.7 | 0.39 | 1.98 |
| 2026-09-23 | 24.96 | 3.83 | 0.37 | 1.58 |
| 2026-09-22 | 24.32 | 9.73 | 0.52 | 20.55 |
| 2026-09-21 | 24.48 | 12.94 | 0.6 | 34.92 |
| 2026-09-18 | 23.62 | 11.39 | 0.56 | 26.48 |
| 2026-09-17 | 23.82 | 11.44 | 0.56 | 26.48 |
| 2026-09-16 | 23.95 | 17.01 | 0.7 | 54.55 |
| 2026-09-15 | 23.64 | 7.83 | 0.47 | 10.28 |
| 2026-09-14 | 23.91 | 5.94 | 0.42 | 4.37 |
| 2026-09-11 | 23.78 | 7.06 | 0.45 | 7.91 |
| 2026-09-10 | 23.54 | 7.86 | 0.47 | 9.49 |
| 2026-09-09 | 23.04 | 8.78 | 0.5 | 12.65 |
| 2026-09-08 | 22.93 | 5.29 | 0.41 | 1.98 |
| 2026-09-04 | 23.18 | 6.34 | 0.43 | 3.95 |
| 2026-09-03 | 23.84 | 8.45 | 0.49 | 10.67 |
| 2026-09-02 | 23.74 | 10.91 | 0.55 | 22.53 |
| 2026-09-01 | 22.96 | 12.72 | 0.6 | 29.37 |